Littérature scientifique sur le sujet « Données de signalisation »
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Articles de revues sur le sujet "Données de signalisation"
Bennetau-Pelissero, Catherine. « Polyphénols et voies de signalisation, données récentes ». Cahiers de Nutrition et de Diététique 49, no 4 (septembre 2014) : 151–59. http://dx.doi.org/10.1016/j.cnd.2014.02.004.
Texte intégralWells, Bill, Juliette Corrin et John Local. « Prosody and interaction in atypical and typical language development ». Travaux neuchâtelois de linguistique, no 49 (1 décembre 2008) : 135–51. http://dx.doi.org/10.26034/tranel.2008.2764.
Texte intégralEl Alaoui, Mustapha Zine, Alexandre Guy, Loubna Khalki, Youness Limami, Ali Benomar, Nabil Zaid, Yahia Cherrah, Hassan Mekhfi, Rachida Cadi et Younes Zaid. « Antiplaquettaires actuels, en cours de développement et cibles thérapeutiques ». médecine/sciences 36, no 4 (avril 2020) : 348–57. http://dx.doi.org/10.1051/medsci/2020061.
Texte intégralEberlin, Philippe. « L’identification acoustique sous-marine des navires-hôpitaux ». Revue Internationale de la Croix-Rouge 70, no 774 (décembre 1988) : 527–41. http://dx.doi.org/10.1017/s0035336100080606.
Texte intégralDariane, Charles, Manon Baures, Julien Anract, Nicolas Barry Delongchamps, Jacques-Emmanuel Guidotti et Vincent Goffin. « Progéniteurs luminaux prostatiques ». médecine/sciences 39, no 5 (mai 2023) : 429–36. http://dx.doi.org/10.1051/medsci/2023058.
Texte intégralGonzalez Lara, L., P. Coto Segura, N. Eiris Salvado, A. Batalla et R. Queiro. « Variantes génétiques de la voie de signalisation NF-kb et risque de psoriasis : données d’une cohorte espagnole ». Annales de Dermatologie et de Vénéréologie 145, no 12 (décembre 2018) : S330—S331. http://dx.doi.org/10.1016/j.annder.2018.09.539.
Texte intégralAvoli, Massimo, et Krešimir Krnjević. « The Long and Winding Road to Gamma-Amino-Butyric Acid as Neurotransmitter ». Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 43, no 2 (14 janvier 2016) : 219–26. http://dx.doi.org/10.1017/cjn.2015.333.
Texte intégralPiveteau, Jean-Luc. « La signalisation routière de direction : une nouvelle donne dans notre relation au territoire ». Espace géographique 32, no 3 (2003) : 193. http://dx.doi.org/10.3917/eg.323.0193.
Texte intégralMota, Manuel M., Helen Braasch, Maria Antonia Bravo, Ana Catarina Penas, Wolfgang Burgermeister, Kai Metge et Edmundo Sousa. « First report of Bursaphelenchus xylophilus in Portugal and in Europe ». Nematology 1, no 7 (1999) : 727–34. http://dx.doi.org/10.1163/156854199508757.
Texte intégralMilian-Massana, Antoni. « La réglementation linguistique dans le domaine socio-économique : perspectives catalane et comparée ». Revue générale de droit 30, no 3 (5 décembre 2014) : 329–68. http://dx.doi.org/10.7202/1027707ar.
Texte intégralThèses sur le sujet "Données de signalisation"
Miraoui, Hichem. « Nouvelles données sur la signalisation du FGFR2 : implications thérapeutiques dans l'ostéogenèse ». Paris 7, 2009. http://www.theses.fr/2009PA077155.
Texte intégralFGF/FGFR signaling is an important regulator of osteogenesis. It controls the differentiation and life span of osteoblastic cells. However, the mechanisms regulating osteoblast differentiation in MSCs are poorly known. Using a model of constitutive activation induced by the FGFR2 mutation, we identified novel functional signaling mechanisms involved in the pathogenesis of Apert craniosynostosis. We show that constitutive activation of FGFR2 positively regulates EGFR and PDGFRa expression. The increased EGFR and PDGFRa signaling functionally contribute to the increased osteogenic differentiation in Apert cells. The regulation of these receptors involves transcriptional and post-transcriptional mechanisms that activate PKCa. This effect is induced in part by transcriptional activation of AP-1 (Fos/Jun), and decreased degradation of EGFR following the sequestration of Cbl by activated Sprouty2. Furthermore, we showed that FGFR2 induce osteoblast differentiation of MSCs and increase their osteogenic potential. The overexpression of FGFR2 increases thé expression of osteoblast markers phenotype and osteogenesis in vitro. This effect involves activation of ERKl/2 and PKCa signaling pathways. We also show that the silencing of Twistl promotes osteogenic differentiation in MSCs via increased expression of FGFR2 and activation of ERKl/2 and PI3K signaling pathways. The results provide new insights into the FGFR2 signaling and its implications in the osteogenic differentiation of MSCs and in Apert syndromic craniosynostosis, thus offering novel potential therapeutic perspectives
Gloaguen, Pauline. « Inférence automatique de modèles de voies de signalisation à partir de données expérimentales ». Thesis, Tours, 2012. http://www.theses.fr/2012TOUR4034/document.
Texte intégralBiological networks, including signalling networks induced by hormones, are very complex. High-throughput experimental methods permit to approach this complexity, but to be able to use all generated data, it is necessary to create automatical inference methods to build networks. We have developped a new inference method based on the formalization of the expert’s reasoning on experimental data. This reasoning is converted into logical rules. This work requires the creation of a knowledge base which is used by an inference engine to deduce conclusions to build networks. Our method has been elaborated by the construction of the signalling network induced by the follicle stimulating hormone whose receptor belongs to the G protein-coupled receptors family. This network has also been built manually to assess our method. Then, a test has been done on the network induced by the epidermal growth factor, which binds to a tyrosine kinase receptor, to demonstrate the ability of our method to deduce differents types of signaling networks
Sultan, Alexis. « Méthodes et outils d'analyse de données de signalisation mobile pour l'étude de la mobilité humaine ». Thesis, Evry, Institut national des télécommunications, 2016. http://www.theses.fr/2016TELE0018/document.
Texte intégralThe aim of this thesis is to study human activities through the analysis of the signaling flow in cellular data network (GTP). In order to achieve this goal, we implemented a set of tools allowing us to collect, store and analyze this signaling data. We created an architecture independent at most of hardware manufacturers and network operators. Using data extracted by this platform we made three main contributions. In our first contribution, we present the GTP capture and analysis platform in a mobile operator network. This work intends to list the different elements triggering updates and to estimate the temporal and spatial accuracy of the data collected. Next, we present a set of measures that represent the main characteristics of human mobility observed through the mobile signaling data (the inter-arrival time of update messages, the observed distances of hops from cell to cell made by moving users). Finally, we present the analysis of the compromise that was made between the writing/reading performances and the ease of use of the file format for the data storage. In our second contribution, we propose CT-Mapper, an unsupervised algorithm that enables the mapping of mobile phone traces over a multimodal transport network. One of the main strengths of CT-Mapper is its capability to map noisy sparse cellular multimodal trajectories over a multilayer transportation network where the layers have different physical properties and not only to map trajectories associated with a single layer. Such a network is modeled by a large multilayer graph in which the nodes correspond to metro/train stations or road intersections and edges correspond to connections between them. The mapping problem is modeled by an unsupervised HMM where the observations correspond to sparse user mobile trajectories and the hidden states to the multilayer graph nodes. The HMM is unsupervised as the transition and emission probabilities are inferred using respectively the physical transportation properties and the information on the spatial coverage of antenna base stations. Finally, in our last contribution we propose a method for cellular resource planning taking into account user mobility. Since users move, the bandwidth resource should move accordingly. We design a score based method using TV Whitespace, and user experience, to determine from which cell resource should be removed and to which one it should be added. Combined with traffic history it calculates scores for each cell. Bandwidth is reallocated on a half-day basis. Before that, real traces of cellular networks in urban districts are presented which confirm that static network planning is no longer optimal. A dynamic femtocell architecture is then presented. It is based on mesh interconnected elements and designed to serve the score based bandwidth allocation algorithm. The score method along with the architecture are simulated and results are presented. They confirm the expected improvement in bandwidth and delay per user while maintaining a low operation cost at the operator side. In conclusion, this thesis provides an overview of the potential of analyzing the signaling metadata of a network in a broader context that supervision of an operator network
Sultan, Alexis. « Méthodes et outils d'analyse de données de signalisation mobile pour l'étude de la mobilité humaine ». Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2016. http://www.theses.fr/2016TELE0018.
Texte intégralThe aim of this thesis is to study human activities through the analysis of the signaling flow in cellular data network (GTP). In order to achieve this goal, we implemented a set of tools allowing us to collect, store and analyze this signaling data. We created an architecture independent at most of hardware manufacturers and network operators. Using data extracted by this platform we made three main contributions. In our first contribution, we present the GTP capture and analysis platform in a mobile operator network. This work intends to list the different elements triggering updates and to estimate the temporal and spatial accuracy of the data collected. Next, we present a set of measures that represent the main characteristics of human mobility observed through the mobile signaling data (the inter-arrival time of update messages, the observed distances of hops from cell to cell made by moving users). Finally, we present the analysis of the compromise that was made between the writing/reading performances and the ease of use of the file format for the data storage. In our second contribution, we propose CT-Mapper, an unsupervised algorithm that enables the mapping of mobile phone traces over a multimodal transport network. One of the main strengths of CT-Mapper is its capability to map noisy sparse cellular multimodal trajectories over a multilayer transportation network where the layers have different physical properties and not only to map trajectories associated with a single layer. Such a network is modeled by a large multilayer graph in which the nodes correspond to metro/train stations or road intersections and edges correspond to connections between them. The mapping problem is modeled by an unsupervised HMM where the observations correspond to sparse user mobile trajectories and the hidden states to the multilayer graph nodes. The HMM is unsupervised as the transition and emission probabilities are inferred using respectively the physical transportation properties and the information on the spatial coverage of antenna base stations. Finally, in our last contribution we propose a method for cellular resource planning taking into account user mobility. Since users move, the bandwidth resource should move accordingly. We design a score based method using TV Whitespace, and user experience, to determine from which cell resource should be removed and to which one it should be added. Combined with traffic history it calculates scores for each cell. Bandwidth is reallocated on a half-day basis. Before that, real traces of cellular networks in urban districts are presented which confirm that static network planning is no longer optimal. A dynamic femtocell architecture is then presented. It is based on mesh interconnected elements and designed to serve the score based bandwidth allocation algorithm. The score method along with the architecture are simulated and results are presented. They confirm the expected improvement in bandwidth and delay per user while maintaining a low operation cost at the operator side. In conclusion, this thesis provides an overview of the potential of analyzing the signaling metadata of a network in a broader context that supervision of an operator network
Laville, Vincent. « Analyses génomiques de données sur le vieillissement cutané ». Thesis, Paris, CNAM, 2015. http://www.theses.fr/2015CNAM1006/document.
Texte intégralThe skin is an excellent model to study general ageing. In addition to environmental factors, genetic factors play a key role in skin ageing mechanisms. During my PhD, I have had access to a unique cohort of 502 Caucasian women very-well characterized regarding their facial features to perform two genome-wide association studies. The first one pointed to the role of the immune system, and especially the HLA‑C gene, in the severity of facial lentigines. The second one identified an association between the H2AFY2 gene and the severity of superior eyelid drooping. I also looked for associations between biological pathways and several skin ageing indicators which underlined the role of the melanogenesis and several mechanisms of DNA repair.Overall, these results lead to new insights in the understanding of the molecular mechanisms underlying skin and global ageing
Scholler, Rémy. « Analyse de données de signalisation mobile pour l’étude de la mobilité respectueuse de la vie privée : Application au secteur du transport routier de marchandises ». Electronic Thesis or Diss., Bourgogne Franche-Comté, 2024. http://www.theses.fr/2024UBFCD001.
Texte intégralMobile network operators have a significant data source derived from communications of all connected objects (not just smartphones) with the network. These signaling data is a massive source of location data and are regularly used for the mobility analysis. However, potential uses face two major challenges: their low spatiotemporal precision and their highly sensitive nature concerning privacy.In the first phase, the thesis work enhances the understanding of the mobility state (stationary or in motion), speed, direction of movement of connected objects, and the route they take on a transportation infrastructure (e.g., road or rail).In the second phase, we demonstrate how to ensure the confidentiality of continuously produced mobility statistics. The use of signaling data, whether related to users or various connected objects, is legally regulated. For the study of mobility, operators tend to publish anonymized statistics (aggregated data). Specifically, the aim is to calculate complex and anonymized mobility statistics "on the fly" using differential privacy methods and probabilistic data structures (such as Bloom filters).Finally, in the third phase, we illustrate the potential of signaling data and the proposed approaches in this manuscript for quasi-real-time calculation of anonymous statistics on road freight transport. However, this is just an example of what could apply to other subjects analyzing population behaviors and activities with significant public and economic policy implications
Bécavin, Christophe. « Reduction de dimensionalité et analyse des réseaux de voies de signalisation pour les données de transcriptome : Appliquation à la caractérisation des cellules T ». Phd thesis, Ecole Normale Supérieure de Paris - ENS Paris, 2010. http://tel.archives-ouvertes.fr/tel-00563238.
Texte intégralDurieu, Cécile. « Algorithmes de localisation d'un robot mobile dans un milieu balisé par mesures de distance ou d'angle de gisement en tenant compte des données aberrantes : algorithmes de calibration et recalage du champ de balises ». Paris 11, 1989. http://www.theses.fr/1989PA112039.
Texte intégralThis thesis analyses algorithms for the localisation of a mobile robot in a beaconed environment. A bibliographical study of different sensors and localization-navigation algorithms for mobile robots allows us to describe the proposed solution : non-sophisticated sensors giving easy-to-compute data. Two kinds of sensors are studied : an ultrasonic/infra-red telemeter with active beacons and a goniometer with passive beacons. A statistical model has been established from a theoretical study of measurement errors. This model is used to compare different localization algorithms and to analyse the feasibility of the sensors. Optimization algorithms giving the robot position while using at best all the beacons data are then studied. We use a reweighted least square criterion. Two iterative methods are compared, the gradient algorithm and the Newton-Gauss method, at first with exact data then with noisy data. We conclude that the second order method is the best one and that we obtain a quasi-efficient estimator of the robot position. Results form previous sections allow us to design a coherence test used to detect and reject aberrant data. An algorithm to find the position of the vehicle when its position is not known form vrevious measurements is then described. This method takes aberrant data into account. An identification method for non-coded beacons is also given, as well as an algorithm for the initial calibration of the field of beacons. Some beacons being portable, we give a method to relocate their position, in the Kalman filtering formalism. Finally, using the same formalism, a data fusion algorithm is used to obtain a better-estimation of the robot position by using information given by the beacons and by a system, measuring the displacements of the vehicle
Redondin, Maxime. « Approches de classifications à partir de données fortement censurées pour l'analyse de fiabilité et la définition de stratégies de maintenance : application aux marquages routiers dans un contexte de véhicules autonomes ». Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1118/document.
Texte intégralThe quality and reliability of road infrastructure and its equipment play a major role in road safety. This is especially true if we are interested in autonomous car traffic. Recent papers from VEDECOM Institut proves that a clear and reliable road marking is important in it decison making. Marking lanes are detected by camera. These markings need an accurate maintenance strategy to guarantee that the markings remain perceptible. This report proposes different solutions based on the reliabilty and maintenance theory. Today, the markings reliability is based on the retroreflective illuminance. A retroreflective marking reflects light from a vehicle headlight back in the direction of the driver. Marking retroreflectivity can be dynamically inspected using a retroreflectometer. The litterature of the last thirty years proposes degradation models for retroreflective marking based on a regression model. All of them have a common weakness: they are difficult to apply directly to a given road network. This report presents maintenance models who math with current maintenance actions. A marking lane is interpreted as multi-unit systeme. All unit are laid in parallel. The global maintenance strategy is based on four points. First, the whole inspection data is formalized into one monitoring base. If inspection data is missing or if the maintenance historic is unavailable else an estimation process based on the Agglomerative Hierarchical Clustering (AHC) is proposed. Second, to replace a whole markings lane is logistically difficult to work. Again, an AHC of the monitoring proposed several clusters. Each cluster presents it own degradation model. Clusters are geographically tracked and correlated to specific situation (interchange, urban area, bypass...). That's why a cluster is interpreted as a maintenance strategic area. Thirdly, a Weibull analysis of each cluster is done. Current retroreflectometers cannot detects the exact faillure moment. this information is statistically censored. Three cases are identified : left, right and interval censored. To parameter a Weibull model, an EM Algorithm is propoased as an alternative to the Maximum Likelihood Estimator. This algorithm is also an estimator to censored markings life time. Lastly, two classic preventive maintenance strategies are proposed : systematic according to the age and conditionned to the current degradation. Each one is credible according the current maintenance practice. The first prposed a passsive managament of the markings maintenance. The second ensures an advanced knowledge of the road network over the time. On a multi-unit system no-repairable and strongly censored, units which admit the same degradation model are identified by a clustering approach. Each cluster present it own Weibull analysis. Finally, an adapted maintenance strategy is done
Wipliez, Matthieu. « Infrastructure de compilation pour des programmes flux de données ». Phd thesis, Rennes, INSA, 2010. http://www.theses.fr/2010ISAR0033.
Texte intégralThe work presented in this thesis takes place in a context of growing demand for better video quality (High-Definition TV, home cinema. . . ) and unprecedented concern for power consumption. The limitations and lack of flexibility of current video standards make it increasingly long and complicated to implement standards on embedded systems. A new standard called Reconfigurable Video Coding aims to solve these problems by describing video coding with dataflow programs. A dataflow program is a program represented as a directed graph where vertices are computational units and edges represent the flow of data between vertices. This thesis presents a compilation infrastructure for dataflow programs that can compile these programs to a simple, high-level Intermediate Representation (IR). We show how this IR can be used to analyze, transform, and generate code for dataflow programs in many languages, from C to hardware description languages